organic chemistry lab
Bella edwards
NMR-spectraandIR1.pdf
3011-NMR and IR spectra of Aspirin, Caffeine and
Acetaminophen
Assign all the signals (using the format reported in experimental section) for ALL compounds for:
• 1H-NMR
• 13C-NMR
• IR
1H of ASPIRIN:
7.27 ppm= CDCl3 residual peak
7.27 ppm= CDCl3 residual peak
EXPANSION OF PREVIOUS SPECTRUM: 8.6-6.3 ppm
13C Spectrum of Aspirin
77 ppm= CDCl3 residual peak
IR_ASPIRIN
1H NMR: CAFFEINE
7.26 ppm= CDCl3 residual peak
13C NMR: CAFFEINE
77 ppm= CDCl3 residual peak
IR: CAFFEINE
1H ACETAMINOPHEN
7.26 ppm= CDCl3 residual peak
EXPANSION OF PREVIOUS SPECTRUM: 8.5-6.0 ppm
7.26 ppm= CDCl3 residual peak
13C ACETAMINOPHEN in CDCl3 and CD3COCD3 (deuterated acetone). Due to limited solubility in CDCl3 the sample was run with some Acetone-d6
77 ppm= CDCl3 residual peak
29 ppm= acetone-d6 residual peak
IR ACETAMINOPHEN
